child: new GestureDetector(
              onTap: () {
                FocusScope.of(context).requestFocus(new FocusNode());
              },
              child: Container(
                /*decoration: new BoxDecoration(
                  image: DecorationImage(
                      image: new ExactAssetImage(
                        'images/backgroud6.jpg',
                      ),
                      fit: BoxFit.fill),
                ),*/
                child: ListView(
                  children: <Widget>[
                    new Container(
                      //第一个
                      alignment: Alignment.centerLeft,
                      width: 600.0,
                      height: 140.0,
                      child: Text('欢迎登陆 Flutter',
                          style: new TextStyle(
                              fontSize: 23.0, fontWeight: FontWeight.w100)),
                      padding: new EdgeInsets.only(left: 30.0),
                      // foregroundDecoration: new BoxDecoration(image:new DecorationImage(image:NetworkImage('https://www.example.com/images/frame.png')),),
                    ),
                    new Container(
                      child: new Column(
                        children: <Widget>[
                          new Container(
                            alignment: Alignment.bottomCenter,
                            child: new Row(
                              mainAxisAlignment: MainAxisAlignment.spaceBetween,
                              children: <Widget>[
                                new Container(
                                  child: Text('+86 >'),
                                  height: 60.0,
                                  padding: new EdgeInsets.only(
                                      top: 12.0, right: 5.0),
                                ),
                                new Expanded(
                                  child: new Form(
                                    key: _formKey,
                                    child: new Container(
                                      child: TextFormField(
                                        validator: (v) =>
                                            (v == null || v.isEmpty)
                                                ? "请填写手机号"
                                                : null,
                                        onSaved: (value) =>
                                            this._userPhone = value,
                                        obscureText: false,
                                        keyboardType: TextInputType.text,
                                        decoration: InputDecoration(
                                            labelStyle: theme.textTheme.caption
                                                .copyWith(
                                                    color: theme.primaryColor),
                                            contentPadding: new EdgeInsets.only(
                                                bottom: 7.4),
                                            fillColor: Colors.blue,
                                            border: UnderlineInputBorder(
                                                borderSide: BorderSide(
                                                    color: Colors.red,
                                                    width: 300.0)),
                                            hintText: '请填写用户名',
                                            helperText: 'user Phone',
                                            helperStyle: new TextStyle(
                                              fontSize: 11.0,
                                              color: Colors.black26,
                                            ),
                                            hintStyle: new TextStyle(
                                                fontSize: 13.0,
                                                color: Colors.black38)),
                                      ), //这里可以让下划线变红色
                                      /* decoration: new BoxDecoration(
                                  color: Colors.white,
                                  border: new Border(
                                    bottom: new BorderSide(
                                        color: Colors.teal,
                                        style: BorderStyle.solid),
                                  ),
                                ),*/
                                    ),
                                  ),
                                ),
                              ],
                            ),
                            height: 70.0,
                            width: 600.0,
                            margin:
                                new EdgeInsets.only(left: 35.0, right: 60.0),
                          ),
                          new Container(
                            width: 600.0,
                            height: 100.0,
                            child: new Form(
                              key: _formKey1,
                              child: new TextFormField(
                                validator: (v) =>
                                    (v == null || v.isEmpty) ? "请填写密码" : null,
                                onSaved: (value) => this._passWold = value,
                                obscureText: true,
                                decoration: InputDecoration(
                                    suffixIcon: IconButton(
                                      icon: Icon(Icons.cancel),
                                      iconSize: 15.0,
                                      color: Colors.black26,
                                      onPressed: () {
                                        setState(() {
                                          _formKey1.currentState.reset();
                                        });
                                      }, /* Icons.cancel,
                                size: 15.0,
                                color: Colors.black26,*/
                                    ),
                                    fillColor: Colors.blue,
                                    border: UnderlineInputBorder(
                                        borderSide: BorderSide(
                                            color: Colors.red, width: 300.0)),
                                    hintText: '  请输入密码',
                                    // prefixIcon: Icon(Icons.add),
                                    helperText: 'user Password',
                                    helperStyle: new TextStyle(
                                      fontSize: 11.0,
                                      color: Colors.black26,
                                    ),
                                    hintStyle: new TextStyle(
                                        fontSize: 13.0, color: Colors.black38)),
                              ),
                            ),
                            margin:
                                new EdgeInsets.only(left: 75.0, right: 60.0),
                          ),
                        ],
                      ),
                    ),
                    new Container(
                      child: Container(
                        child: OutlineButton(
                          borderSide: BorderSide(
                              color: Colors.lightBlueAccent,
                              width: 3.0,
                              style: BorderStyle.none),
                          onPressed: () {
                            final form = _formKey.currentState;
                            final form1 = _formKey1.currentState;
                            if (form.validate()) {
                              form.save();
                            }
                            if (form1.validate()) {
                              form1.save();
                            }
                            //登陆
                            _Login(this._userPhone, this._passWold, context);
                          },
                          child: new Text(
                            '登陆',
                            style:
                                TextStyle(color: Colors.white, fontSize: 16.0),
                          ),
                        ),
                        height: 45.0,
                        decoration: new BoxDecoration(
                            color: Color(0xFFB2EBF2),
                            borderRadius:
                                BorderRadius.all(const Radius.circular(58.0))),
                      ),
                      margin: new EdgeInsets.symmetric(horizontal: 60.0),
                    ),
                    new Container(
                      margin: new EdgeInsets.only(
                          left: 65.0, right: 65.0, top: 20.0),
                      child: new Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: <Widget>[
                          new GestureDetector(
                            child: new Container(
                              child: new Text(
                                '验证登录',
                                style: TextStyle(
                                    fontSize: 13.0, color: Colors.black38),
                              ),
                            ),
                          ),
                          new GestureDetector(
                            child: new Container(
                              child: new Text(
                                '忘记密码',
                                style: TextStyle(
                                    fontSize: 13.0, color: Colors.black38),
                              ),
                            ),
                          )
                        ],
                      ),
                    ),
                    new Container(
                      child: new Column(
                        children: <Widget>[
                          new Container(
                            child: new Row(
                              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                              children: <Widget>[
                                new Container(
                                  child: OutlineButton(
                                    onPressed: () {},
                                    child: Image.asset('images/weixing.png'),
                                    borderSide:
                                        new BorderSide(style: BorderStyle.none),
                                  ),
                                  width: 60.0,
                                  height: 60.0,
                                  decoration: new BoxDecoration(
                                      border:
                                          new Border.all(color: Colors.black12),
                                      //  color: Color(0xFFB2EBF2),
                                      borderRadius: BorderRadius
                                          .all(const Radius.circular(58.0))),
                                ),
                                new Container(
                                  child: OutlineButton(
                                    onPressed: () {},
                                    child: Image.asset('images/qq.png'),
                                    borderSide:
                                        new BorderSide(style: BorderStyle.none),
                                  ),
                                  width: 60.0,
                                  height: 60.0,
                                  decoration: new BoxDecoration(
                                      border:
                                          new Border.all(color: Colors.black12),
                                      borderRadius: BorderRadius
                                          .all(const Radius.circular(58.0))),
                                ),
                              ],
                            ),
                          ),
                        ],
                      ),
                      margin: new EdgeInsets.only(top: 100.0),
                    ),
                  ],
                ),
              ),
            ),
          ),